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Is anyone else too hot at night with a combi boiler?

90 replies

PerkyOchrePeer · 03/04/2026 01:31

How do people cope with sleeping at night in bed under a duvet with a combi boiler. I am too hot even though my thermostat has been turned right down a d it's so uncomfortable. I hate the boiler i did not ask for it because my housing association just gave it to me and I had no choice but IM unable to sleep because I'm too hot even with the temperature turned right the way down. I just can't cope with this anymore.

OP posts:
WonderfulSmith · 03/04/2026 17:54

rwalker · 03/04/2026 17:41

the boiler will switch itself on using the outdoor weather compensator which I explained above

Oh, I don’t know about those, I don’t have one. But even so the boiler itself shouldn’t be hot even if it’s on.

frenchnoodle · 03/04/2026 18:05

rwalker · 03/04/2026 17:41

the boiler will switch itself on using the outdoor weather compensator which I explained above

Whatever you do, don't light a fire. You see fire is hotter and will burn.

Lifestooshort71 · 03/04/2026 18:49

I've had a combi for years with no problems. Had a new one installed 2024, again no problems, but I vaguely remember finding the digital thermostat in the hall had a option for 'Landlord Control Setting'. But, if your radiators are off and cold, it can't be something preset. I agree with pp, perhaps you have it too hot earlier and the house doesn't cool down quickly at night?

ExOptimist · 03/04/2026 18:53

NUFC69 · 03/04/2026 11:00

We had a combi boiler installed a couple of years ago and whilst it's very good for some things, I really regret doing it. My DH was persuaded by the heating engineer, but I miss the airing cupboard. We've had to have an electric towel rail fitted in the bathroom, but as we only have it on for a couple of hours in the morning, the towels don't get dry and warm as they did in the airing cupboard. Added to that the bathroom floor is now cold as there are no longer pipes going to the immersion tank. And yes, there is a normal radiator in there. DH was persuaded on grounds of costs, but I don't think we've saved anything at all, and, as I said, it's colder in the bathroom.

I know this doesn't help the Op, and I have no idea how she's so hot overnight if the heating is off, but I wanted to give my experience with a combi.

This is precisely why, when I had a new boiler recently, I kept my hot water tank and airing cupboard. I don't know how people manage without a warm airing cupboard. I line dry a lot and sheets, towels etc live in there, everything that doesn't need ironing goes in there for a day or so even if a bit damp from the line, dries off beautifully before being put away. I can dry things quickly in there that can't be tumbled. You couldn't pay me to have a combi boiler.

Ginmonkeyagain · 04/04/2026 06:57

@rwalker yeah but it would have to be pretty cold for the frost protection/cold weather compensator to come on. In 10 years I don't think ours has ever kicked in ((TBF we do live in London).

Surely if it is that cold outside (we are talking cold enough to freeze pipes) then the OP.would not be too hot either.

34feeling54 · 04/04/2026 07:02

HereForTheFreeLunch · 03/04/2026 11:23

Where is the heat coming from if the radiator is stone cold?

The ops hot air everytime she opens her mouth I think.

rwalker · 04/04/2026 10:36

Ginmonkeyagain · 04/04/2026 06:57

@rwalker yeah but it would have to be pretty cold for the frost protection/cold weather compensator to come on. In 10 years I don't think ours has ever kicked in ((TBF we do live in London).

Surely if it is that cold outside (we are talking cold enough to freeze pipes) then the OP.would not be too hot either.

It’s not frost protection out door weather compensator is a completely different thing

it gets the weather forecast and thinks it’s 15 degrees outside so it’s going to be cold inside they like it at 21 degrees inside so it we I’ll switch itself on

all they need to do is disable this facility and it will work like ever other boiler

CrocusesFlowering · 04/04/2026 10:38

@ExOptimist
We kept the airing cupboard and put a radiator in it.

VividDeer · 04/04/2026 10:39

My boiler does fire up to heat a small amount of water. This feature can be turned off *eco mode.

flapjackfairy · 04/04/2026 10:49

do you have an app? if so yoj can switch off the outside temperature reader. And turn your bedroom radiator off completely at night.

Catcatcatcatcat · 04/04/2026 10:50

I have a combi boiler on a timer. If your radiator is turned off, and you confirm it is cold, then your heating system is not the source of your problem.

NoCommentingFromNowOn · 04/04/2026 13:09

CrocusesFlowering · 04/04/2026 10:38

@ExOptimist
We kept the airing cupboard and put a radiator in it.

Bloody hell thats genius 🤯

ExOptimist · 04/04/2026 13:20

CrocusesFlowering · 04/04/2026 10:38

@ExOptimist
We kept the airing cupboard and put a radiator in it.

How does that work when the heating isn't on? With the cylinder in the airing cupboard it's warm all the time constantly.

ScaryM0nster · 04/04/2026 13:26

You’ve got a heating control problem, not a combo boiler problem.

You mention electrician. Boilers are plumber / gas technician jobs not electrician jobs.

Are you sure you’ve got a boiler and not a heat pump?

CrocusesFlowering · 04/04/2026 14:29

@ExOptimist
It’s on its own separate zone. Comes on for an hour in the morning. Heat is retained for about 3 hours after that hour.

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